Occult hepatitis B virus infection increases hepatocellular carcinogenesis by eight times in patients with non-B, non-C liver cirrhosis: a cohort study |
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Authors: | K. Ikeda M. Kobayashi T. Someya S. Saitoh T. Hosaka N. Akuta F. Suzuki Y. Suzuki Y. Arase H. Kumada |
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Affiliation: | Department of Hepatology, Toranomon Hospital, Tokyo, and the Okinaka Memorial Institute for Medical Research, Tokyo, Japan |
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Abstract: | Summary. An impact of serum hepatitis B virus (HBV) DNA on hepatocarcinogenesis has not been investigated in a cohort of patients with non-B, non-C cirrhosis. Eighty-two consecutive Japanese patients with cirrhosis, who showed negative hepatitis B surface antigen and negative anti-hepatitis C virus, were observed for a median of 5.8 years. Hepatitis B virus core (HBc) region and HBx region were assayed with nested polymerase chain reaction. Both of HBc and HBx DNA were positive in 9 patients (11.0%) and both were negative in 73. Carcinogenesis rates in the whole patients were 13.5% at the end of the 5th year and 24.6% at the 10th year. The carcinogenesis rates in the patients with positive DNA group and negative DNA group were 27.0% and 11.8% at the end of the 5th year, and 100% and 17.6% at the 10th year, respectively ( P = 0.0078). Multivariate analysis showed that men ( P = 0.04), presence of HBc and HBx DNA (hazard ratio: 8.25, P = 0.003), less total alcohol intake ( P = 0.010), older age ( P = 0.010), and association of diabetes ( P = 0.005) were independently associated with hepatocellular carcinogenesis. Existence of serum HBV DNA predicted a high hepatocellular carcinogenesis rate in a cohort of patients with non-B, non-C cirrhosis. |
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Keywords: | hepatitis B virus hepatocellular carcinogenesis liver cirrhosis occult hepatitis B virus infection proportional hazard model |
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